1
|
Lee HJ, Nam J, Hwang JW, Park JH, Jeong YJ, Jang JY, Kim SJ, Jo AR, Hoe HS. L-DOPA regulates neuroinflammation and Aβ pathology through NEP and ADAM17 in a mouse model of AD. Mol Brain 2024; 17:21. [PMID: 38685105 PMCID: PMC11059733 DOI: 10.1186/s13041-024-01092-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 04/16/2024] [Indexed: 05/02/2024] Open
Abstract
Dopamine plays important roles in cognitive function and inflammation and therefore is involved in the pathogenesis of neurodegenerative diseases, including Alzheimer's disease (AD). Drugs that increase or maintain dopamine levels in the brain could be a therapeutic strategy for AD. However, the effects of dopamine and its precursor levodopa (L-DOPA) on Aβ/tau pathology in vivo and the underlying molecular mechanisms have not been studied in detail. Here, we investigated whether L-DOPA treatment alters neuroinflammation, Aβ pathology, and tau phosphorylation in 5xFAD mice, a model of AD. We found that L-DOPA administration significantly reduced microgliosis and astrogliosis in 5xFAD mice. In addition, L-DOPA treatment significantly decreased Aβ plaque number by upregulating NEP and ADAM17 levels in 5xFAD mice. However, L-DOPA-treated 5xFAD mice did not exhibit changes in tau hyperphosphorylation or tau kinase levels. These data suggest that L-DOPA alleviates neuroinflammatory responses and Aβ pathology but not tau pathology in this mouse model of AD.
Collapse
Affiliation(s)
- Hyun-Ju Lee
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-Ro, Dong-Gu, Daegu, 41068, Korea
| | - JinHan Nam
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-Ro, Dong-Gu, Daegu, 41068, Korea
| | - Jeong-Woo Hwang
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-Ro, Dong-Gu, Daegu, 41068, Korea
| | - Jin-Hee Park
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-Ro, Dong-Gu, Daegu, 41068, Korea
- Department of Brain & Cognitive Sciences, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu, 42988, Korea
| | - Yoo Joo Jeong
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-Ro, Dong-Gu, Daegu, 41068, Korea
- Department of Brain & Cognitive Sciences, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu, 42988, Korea
| | - Ji-Yeong Jang
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-Ro, Dong-Gu, Daegu, 41068, Korea
- Department of Brain & Cognitive Sciences, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu, 42988, Korea
| | - Su-Jeong Kim
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-Ro, Dong-Gu, Daegu, 41068, Korea
| | - A-Ran Jo
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-Ro, Dong-Gu, Daegu, 41068, Korea
| | - Hyang-Sook Hoe
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-Ro, Dong-Gu, Daegu, 41068, Korea.
- Department of Brain & Cognitive Sciences, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu, 42988, Korea.
| |
Collapse
|